the minimum rate charged for any Owner Charter shall be no less than the Owner Charter Rate set forth on Exhibit C.  
(c)    Calculation of Cost. All calculations of Costs shall be pro-rata based upon hourly available usage of the Aircraft. For example, a pilot’s monthly salary shall be divided by the total number of flight hours available to be flown by said pilot, and then allocated as a Cost on a per hour basis.   
4.6    Training. In accordance with Brim FAA approved training programs.   
4.7    [Reserved.]